BYZANTINE CHURCHES CHAP. V of joining leaves to a centre so as to form spiral rosettes^ is found also on some of the small capitals in S. Sophia* Similar rosettes appear in the decoration of the doorway to the Holy Sepulchre on the ivory in the Trivulce collection at Milan.1 1 See figure 26 in DiehFs Manuel d'art byzantin, p. 74. That author (pp. 313-14) assigns the church of S. Andrew to the seventh century, but recognizes in it also features of the sixth century. FIG. 36. —THE CHURCH OF S, ANDREW IN KRISEI (RESTORED PLAN).